EFI fuel tank for the G body Olds on a budget
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- เผยแพร่เมื่อ 2 ต.ค. 2024
- There are lots of ways to do EFI fuel tanks on 78-88 G bodies. I am thrifty and put this method together a few years back before all the aftermarket options were available. It's still the best bang for the buck in my opinion so here's what I do!
Just now tuning in keep that camera rolling 💪🏾🫡
#Holley part number 12-329 will go in a stock Cutlass fuel tank with no problem. Just add relay and wires.
Nice Cutlass keep it going
Great video! Thank you. Question - is it bad to run too large of a pump using a return-style fuel system?
Couple questions. Regarding the pass through/ bulkhead you used from Racetronix, is that part number RCS-028 or RCS-027?
Also you mentioned something about the AN fittings being 37 degrees and through me off. Did you flare the ends of the hardline on the fuel sending unit side ? I thought the AN compression fittings didn’t need to have flared ends.
Thanks for making this video. I’ve been chasing fuel starvation issues with the Holley Sniper EFI in my 88 Monte for over 2 years now. I originally thought the shop who did the install had the fuel pump sitting too high, but after dropping the tank, I saw the pump was at the right height.
I was not aware that the fuel tank needs to be changed to an EFI one (apparently the shop wasn’t either). I am confident this will fix my issues.
How much was the cost of everything. I am currently looking at the Aeromotive efi tank setup for under 700.
Thank you very much for testing gravity again I was thinking it was no longer around however, you proved it
Did you upgrade the wires on top of the sending unit.?? purple - grey - black wires.??
I reused the black grey and purple wires from the spectra sending unit. I only added the red additional power feed
Option A. Buy a sending unit for a 4.3l tbi Monte Carlo and swap the pump to a 255 or 340 pump and damn the baffle. Option b buy a fuel tank for a tbi v6 Monte or an efi cutlass. They're not actually that expensive and although most modern stampings are thin a few companies like liland powder coat them. Option c get a stainless sending unit from a company called quantum. It's not very expensive. Option d. Drill a hole in your stock sending unit and solder another tube into it, cut the pickup tube just below the sender arm and use the stock pickup as a return, the new tube will hook to the pump and the vent will still be a vent.
There are differences in the fill tube from car model to car model, there are 3 that I know of. This doesn't always matter but I happen to have a full tube for an f150 that I could hypothetically make work with a silicone coupler a hacksaw and some kind of home made bracket behind the license plate. It happens to have about the right length and bend. It also has a provision for a vent tube so a scrap yard random fill tube is a possibility.
If you're using normal injectors and not a factory tbi then you can use a gm fuel filter with a return they still them on trucks as far as I can tell. That'll give you a 58psi built in regulator and less fuel line. You may want to run 1/2" or -8 or -10 line forward of the filter so you don't lose pressure in a high hp application. The pump can theoretically use -6 to a fairly high power level but the pressure at the pump is a gonna be measurably higher than at the rail. That's fine with a rail mounted regulator and it could theoretically be tuned around but if you have the regulator in the back of the car via the fuel filter it's just a messy detail where a bigger line could save some trouble.
Nice job... I have a question my 86 Monte Carlo I replace the gas tank with the EFI but the fuel neck does not allow me to put gas in it feels out everywhere.. Where can I purchase the factory fuel neck replacement SO gas will go in the tank easier?
You can't buy replacement OEM fuel necks, that's kinda the point to save the factory one like me and put it on a new tank. Many people report issues with the aftermarket filter necks. Some people have added additional/external vents.
@@hackjobhotrodshop5075so how did you get the factory fuel neck to fit in the new tank
Where did you get the plug to feed the wires into the sender to the pump? Great video btw!!!
Racetronix is where I got the bulkhead. I got my weather pack connectors and pins from Waytek wire
@@hackjobhotrodshop5075 thank you!
Why not just buy a national tank with the kneck already on it?
The Buick tank neck isn't a good fit for an Oldsmobile and aftermarket tanks have widely reported issues that they splash fuel out of them during filling due to poor venting design
Keep that car running
Did you have to solder the filler neck on new tank?
Yes I did!
@@hackjobhotrodshop5075 ok thank you!!
Nice work! Do you have a part number for the sending unit you used?
It's whatever rock auto has for a 87 GN